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  • Android: Saving custom button and spinner

    - by Jacob Huggart
    Hello All, I am new to Android programming and was handed a fairly large program that is almost complete, but needed support for switching between portrait and landscape view. I added android:configChanges="keyboardHidden|orientation" to the manifest and used onConfigurationChanged to save the view data and that works. However, there is a button that displays the date selected (when pressed a calendar to select the date comes up) and a spinner that displays the current view and is used to select a new view. Those two items are being cleared/reset and do not work at all after the screen flip. I have been attempting to use onSaveInstanceState and onRestoreInstanceState to fix that, but I cannot figure out how to get it to work. Any advice?

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  • Repeating parallax using Cocos2D on Android

    - by Saurabh Verma
    I want to draw a infinitely repeating parallax using Cocos2D on Android. Now, there are some solutions given to this problem in Objective C, but I'm stuck with my implementation in Android. I have tried using CCSprite background = CCSprite.sprite("background_island.png"); CCTexParams params = new CCTexParams(GL10.GL_LINEAR,GL10.GL_LINEAR,GL10.GL_REPEAT,GL10.GL_REPEAT); background.getTexture().setTexParameters(params); But it only extends the background in 1 direction. I guess I have to use 2 sprites, such that as soon as 1st finishes, the other starts and vice versa, but I'm stuck with the implementation.

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  • How to set and get the id for the items in the spinner in Android

    - by Haresh Chaudhary
    I have a problem in my project that i am displaying a activity which would contain the details of the project which is previously added in Project Management System.. Now the fields in it are like: Fields of the Activity Name Of Project: ABC(EditText) Name Of Developer : ________(Spinner) Deadline : ________(Date Picker) Created On : _______(TextView) . . Now, the Spinner contains the Names of all developers working in the Company..I have used the ArrayAdapter with a array having the names of all the developers which is fetched from the database.. The problem is that when i update the Name Of Developer field, i get Only the Name of the Developer which is not enough to update the data as their can be multiple developers with the same name in the Company..So now I require the id of the developers to update it.. How to store that id of the developers with the Spinner so that i can achieve this.. Please help me to sort this out. Actually what i want to do like is as that we do in html:: <select> <option id="1">Developer1</option> <option id="2">Developer2</option> <option id="3">Developer2</option> <option id="4">Developer2</option> </select> where the id attached would be the database id....I want to imitate this in our android.... This the code that i have used to store the names in the array:: String alldevelopers = null; try { ArrayList<NameValuePair> postP = new ArrayList<NameValuePair>(); alldevelopers = CustomHttpClient.executeHttpPost( "/fetchdevelopers.php", postP); String respcl = alldevelopers.toString(); alldevelopersParser dev = new alldevelopersParser(); ow = dev.parseByDOM(respcl); } catch (Exception e) { e.printStackTrace(); } String developers[] = new String[ow.length]; //dev is a class object for (int n = 0; n < ow.length; n++) { developers[n] = ow.developer[n][2]; } This is the Spinner that would spin the array.. final Spinner devl = (Spinner) findViewById(R.id.towner); devl.setOnItemSelectedListener(managetasks.this); ArrayAdapter<String> b = new ArrayAdapter<String>getApplicationContext(), android.R.layout.simple_spinner_item,developers); b.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line); devl.setAdapter(b);

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  • Android insert into sqlite database

    - by Josh
    I know there is probably a simple thing I'm missing, but I've been beating my head against the wall for the past hour or two. I have a database for the Android application I'm currently working on (Android v1.6) and I just want to insert a single record into a database table. My code looks like the following: //Save information to my table sql = "INSERT INTO table1 (field1, field2, field3) " + "VALUES (" + field_one + ", " + field_two + ")"; Log.v("Test Saving", sql); myDataBase.rawQuery(sql, null); the myDataBase variable is a SQLiteDatabase object that can select data fine from another table in the schema. The saving appears to work fine (no errors in LogCat) but when I copy the database from the device and open it in sqlite browser the new record isn't there. I also tried manually running the query in sqlite browser and that works fine. The table schema for table1 is _id, field1, field2, field3. Any help would be greatly appreciated. Thanks!

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  • How would one rotate an image around itself using Canvas?

    - by Wolfr
    I'm having trouble roating an image around itself using Canvas. Since you can't rotate an image you have to rotate the canvas: if I rotate the canvas by a degree the origin around which I want to rotate changes. I don't get how to track this change. This is my current code: http://pastie.org/669023 And a demo is at http://preview.netlashproject.be/cog/ If you want to give things a shot the zipped up code and image is at http://preview.netlashproject.be/cog/cog.zip

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  • Displaying a notification when bluetooth is disconnected - Android

    - by Ryan T
    I am trying to create a program that will display a notification to the user if a Blue tooth device suddenly comes out of range from my Android device. I currently have the following code but no notification is displayed. I was wondering if it was possible I shouldn't use ACTION_ACL_DISCONNECTED because I believe the bluetooth stack would be expecting packets that state a disconnect is requested. My requirements state that the bluetooth device will disconnect without warning. Thank you for any assistance! BluetoothNotification.java: //This is where the notification is created. import android.app.Activity; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.app.Activity; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.os.Bundle; public class BluetoothNotification extends Activity { public static final int NOTIFICATION_ID = 1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); /** Define configuration for our notification */ int icon = R.drawable.logo; CharSequence tickerText = "This is a sample notification"; long when = System.currentTimeMillis(); Context context = getApplicationContext(); CharSequence contentTitle = "Sample notification"; CharSequence contentText = "This notification has been generated as a result of BT Disconnecting"; Intent notificationIntent = new Intent(this, BluetoothNotification.class); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0); /** Initialize the Notification using the above configuration */ final Notification notification = new Notification(icon, tickerText, when); notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent); /** Retrieve reference from NotificationManager */ String ns = Context.NOTIFICATION_SERVICE; final NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns); mNotificationManager.notify(NOTIFICATION_ID, notification); finish(); } } Snippet from OnCreate: //Located in Controls.java IntentFilter filter1 = new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED); this.registerReceiver(mReceiver, filter1); Snippet from Controls.java: private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) { //Device has disconnected NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); } } };

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  • Huh? Android Preferences page refuses to load after adding SDK 1.6

    - by Android Eve
    This one is really weird. I had a perfectly working Eclipse + Android 2.2 SDK working in both Administrator account and LUA (Limited User Account) under Windows XP. Then I decided to add the Android 1.6 SDK (I could do it from an Administrator account only). It seemed to have gone well, since it still works perfectly -- but only in that Administrator account! When I try to start Eclipse under a LUA, I receive the following error message box: Which disappears within 2-3 seconds and replaced with: I then tried to check the Preferences page, but again, all I receive is error messages: and: Any idea why this is happening and how to fix this? (I would love to be able to continue working from a LUA)

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  • Android - Debugging on device

    - by teepusink
    Hi, How do I install the app that I'm making on an actual device? I'm on Mac Snow Leopard with a Nexus One phone and I've followed the steps here http://developer.android.com/intl/zh-TW/guide/developing/device.html So I added: 1. android:debuggable="true" 2. Turn on "USB Debugging" on your device. However, when I go to the terminal and do "adb devices" only the emulator shows up there. I'm supposed to see my device name too right? What am I missing? Thanks, Tee

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  • Android strace in Real device

    - by Martin Solac
    I have the following situation, I want to monitor the system calls on Android phones so I made an script to do that. With Android Emulator works perfectly (writes the traces of the application in a specific file on my Ubuntu). The problem is when I attach a real phone to analyze it, it says the following in the result file: ptrace attach failed: Operation not permitted I'm using this code to get it, but I don't understand why it works on the emulator and not in the rooted real device. This is the comand I use in perl: system("$dirTools/adb -s $Device shell strace -p $PID[1]>$dirRecordDataSet/$Date/$appName &"); Any suggestion? Thanks in advance

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  • How big can I make an Android application's canvas in terms of pixels?

    - by user279112
    I've determined an estimate of the size of my Android emulator's screen in pixels, although I think its resolution can be changed to other numbers. Quite frankly though that doesn't eliminate the general problem of not knowing how many pixels on each axis I have to work with on my Android applications in general. The main problem I'm trying to solve is this: How do I make sure I don't use a faulty resolution on Android applications if I want to keep things' sizes constant (so that if the application screen shrinks, for instances, objects will still show up just as big - there just won't be as many of them being shown) if I wish to do this with a single universal resolution for each program? Failing that, how do I make sure everything's alright if I try to do everything the same way with maybe a few different pre-set resolutions? Mainly it seems like a relevant question that must be answered before I can come across a complete answer for the general problem is how big can I always make my application in pixels, NOT regarding if and when a user resizes the application's screen to something smaller than the maximum size permitted by the phone and its operating system. I really want to try to keep this simple. If I were doing this for a modern desktop, for instance, I know that if I design the application with a 800x600 canvas, the user can still shrink the application to the point they're not doing themselves any favors, but at least I can basically count on it working right and not being too big for the monitor or something. Is there such a magic resolution for Android, assuming that I'm designing for API levels 3+ (Android 1.5+)? Thanks

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  • Trying to start a service on boot on Android

    - by Alex
    I've been trying to start a service when a device boots up on android, but I cannot get it to work. I've looked a number of links online but none of the code is working. Am I forgetting something? This is my code. Manifest <receiver android:name=".StartServiceAtBootReceiver" android:enabled="true" android:exported="false" android:label="StartServiceAtBootReceiver"> <intent-filter> <action android:name="android.intent.action._BOOT_COMPLETED"/> </intent-filter> </receiver> <service android:enabled="true" android:name="com.test.RunService"/> Receiver OnReceive public void onReceive(Context context, Intent intent) { if("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) { Intent serviceLauncher = new Intent(context, RunService.class); context.startService(serviceLauncher); Log.v("TEST", "Service loaded at start"); } } Thanks,

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  • Android::Confused about image sizes in a website

    - by Legend
    I was testing my website inside the Android emulator with the Droid Skin (240 dpi). I have the following css: #container { position: relative; width: 854px; height: 480px; background: #000; margin: auto; } #container li { position: relative; list-style: none; width: 201px; height: 110px; padding-left: 10px; padding-top:10px; padding-bottom:10px; overflow: hidden; float: left; z-index: 2; } The display is not what I expected obviously because I am defining everything in px (when I should have been using dip but css does not allow dip). How can I convert my px to something that is suitable for Android? Any suggestions?

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  • Gen folder disappearing in Eclipse Android project

    - by Adam Haile
    I'm just getting started developing for Android and I'm running into a weird problem. First off, I'm running Eclipse for Java devs v3.5.2 with the Android 2.1 SDK installed. Basically, whenever I do just about anything the "gen" (R.java, etc.) folder will just disappear from the project. I'm seen some people online say that it was still on the drive, just gone from the project listing in Eclipse, but in my case it is literally and completely gone. The only fix I've found is that if I refresh, then try to build, it gives an error and "gen" shows up in the project view (though it's not on the disk), then delete it from within the project, then Rebuild All and it will say that it cannot find it and is recreating it. Problem is, I have to do this every single time I want to build. There's got to be a fix for this.

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  • Android remote code loading

    - by sehugg
    I am developing a library for Android that requires frequent updates from a central server. I was thinking how nice it would be if my library could update itself -- or if I could just release a bootstrap library that downloads the target library when the app is installed. I see this class in 1.5 called "DexClassLoader" but there seems to be precious little on the web besides the API docs. Has anyone used this successfully for the scenario which I described? Also, do the terms of the Android Market permit such a thing?

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  • How to get HTML5 canvas text to show html entity?

    - by mrollinsiv
    I'm parsing an xml file that stores image/caption data both of which I need to display on my canvas. However occasionally there's an entity in the file and when drawing the text to the canvas it interprets it as flat text. How can i get &copy; to show up as © on the canvas? Is this even possible, or does anyone know of a good work around?

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  • image on top of button android

    - by N-AccessDev
    Is it possible to add an image(view) on top of a button (which as a background image)? I'm porting an iOS app to Android and it wasn't a problem on iOS, but I'm wondering if it is the right approach on Android because of layouts. Edit : To clarify, check this screen shot : http://a4.mzstatic.com/us/r1000/062/Purple/v4/7c/4b/cd/7c4bcd53-ba55-94d7-a26c-ce1bfe040003/mza_2736801523527387264.320x480-75.jpg I need to do the bottom left button "carte" (card in french) I need : a button with a background image an image displayed on top of the button which is loaded from internet (a card , there is a lot of different and news cards are added daily, in the screnshot it s "MIDI PASS" ) a text localised on the button , so I cant use Imagebutton class.

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  • Android how to display and image from URL

    - by Patrick
    Hi all! I'm having trouble displaying SOME images on my android app. Just normal display image from certain URL. Some images works, some just doesn't work. For instance try displaying this image from URL: http://img191.imageshack.us/img191/7379/tronlegacys7i7wsjf.jpg It doesn't work. Doesn't even work in emulator. Could it be the EXIF info for the image is problematic? Can anyone try to see they are able to display that image on android app, and share the code/method to display that image on screen? Thank you!

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  • Application not showing up in Google Play for 4.x devices

    - by Zargle
    I recently posted about the Play store not letting me publish my app without a minSdkVersion, but whenever I set it to anything above "1" my app just doesn't work (minSdkVersion breaking program). So this guy suggested to just set my minSdkVersion to 1, which worked. But now when I submitted my app even though the developer site says: API level: 1-16+ Supported screens: normal-xlarge OpenGL textures: all But the app only shows it supports Android under 4.x, I developed it on my 4.0.4 device. I tried searching around and I found that some people have problems with services messing up the phones it supports, so I deleted all of my services, because I don't really need any for this version of the app to submit. And it still didn't work. So I don't know what else to do, here is my AndroidManifest.xml if it helps... I've been trying to figure out why my application isn't working for a week now, still nothing. I have tried setting a targetSdkVersion to something like 14, my application still breaks. I cleaned out my code, taking everything out of the already short, 200 lines, application, and it still isn't working. Is there something I can't use in an android application 4.0 that I am using in my application? or is it just my AndroidManifest? Thank you so much! <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.unparalleledsoftware.app.list" android:versionCode="5" android:versionName="2.02" > <uses-sdk android:minSdkVersion="1" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/title_activity_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> I should note,I am using the Theme.Holo.Light, but even if I change it to DeviceDefault it doesn't work. Edit: I googled the app on my friends Samsung Galaxy S3 (it didn't show up in the Play Store on his phone), when I installed by googling the app and hitting the "install" button on google and it opened in the Google Play store and was able to install. When I did the same on my phone, Galaxy Note, it opened in the Google Play Store, but then said "Not compatible." Why? They are both on the same version of OS. Why is mine not compatible, nor the One X compatible, but the Samsung Galaxy S3 worked...? Edit: I get these errors/problems when compiling with a targetSdkVersion, http://pastebin.com/mxgWNLdM

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  • How do I attach event bindings to items on a canvas using Tkinter?

    - by Ian
    If I'm using a canvas to display data and I want the user to be able to click on various items on the canvas in order to get more information or interact with it in some way, whats the best way of going about this? Searching online I can find information about how to bind events to tags but that seems to be more indirect then what I want. I don't want to group items with tags, but rather have specific function calls when the user clicks specific items on the canvas.

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  • How do I rotate a single object on an html 5 canvas?

    - by Kappers
    I'm trying to figure out how to rotate a single object on an html 5 canvas. For example: http://screencast.com/t/NTQ5M2E3Mzct - I want each one of those cards to be rotated at a different degree. So far, all I've seen are articles and examples that demonstrate ways to rotate the entire canvas. Right now, I'm guessing I'll have to rotate the canvas, draw an image, and then rotate the canvas back to it's original position before drawing the second image. If that's the case, then just let me know! I just have a feeling that there's another way. Anyone have any idea? Thanks in advance!

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  • An html5 canvas element in the background of my page?

    - by fx42
    Is it possible to have a full screen canvas element in the background of a webpage and "normal" markup elements like a table in front of it? like the following snippet (if it wouldn't be used as alternative content): <canvas id=&#34;imageView&#34; width=100%; height=100%;> <table>...</table> </canvas>

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